Answer:
there's no way to answer that
Explanation: An element does not exist alone in the nature. It exist in the form of isotopes of its own. Atomic mass of that element is the average atomic masses of the isotopes.
Average atomic mass of the element is defined as the sum of atomic masses of isotopes each multiplied with their respective natural fractional abundance.
Mathematically,
This is the reason, why an element does not have a whole number atomic mass, but exist in decimal numbers.
b.compound
c.mixtures
d.solution
A compound is a substance in which all the exact combinations of elements are always the same. The correct option is b.
Compounds are substances that are made up of two or more substances or elements. A compound is a mixture of two elements, they share bonds with each other, and they form a totally different substance than the above elements.
For example, NaCl is a compound. It is formed by two elements, sodium, and chloride. These elements form a different compound that is common table salt.
Some compounds are pure substances because they are made up of only elements that mix together. They do not contain any impurity or any other substance. They share chemical bonds with each other.
Thus, the correct option is b. compound.
To learn more about compounds, refer to the link:
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Answer:
you know what i really dont know but imagine if they were huge
Explanation:
Answer:
The correct answer is "Oxidation at the anode and reduction at the cathode".
Explanation:
A rechargeable battery is recharged by the movement of electrons from an external power source into the battery. In order to achieve this, two process take place inside the rechargeable battery: oxidation at the anode and reduction at the cathode. The electrons flow within the battery from the anode to the cathode, this happens by the oxidation of the anode (loss of electrons) and the reduction at the cathode (gain of electrons).
(2) C6H12O6 (4) CH3COOH
Answer: Option (4) is the correct answer.
Explanation:
Substance which are able to conduct electricity are ionic in nature. This means that only ionic substances can conduct electricity because they dissociate into ions.
Therefore, out of the given options only acetic acid is ionic in nature.
Though is a weak acid but it does dissociate into ions and hence, it forms a solution that conducts an electric current.
b. a beta particle
c. gamma radiation
d. all of the above
Answer: The radiation that is emitted from the above process is alpha particle.
Explanation:
Alpha decay is defined as the process in which alpha particle is emitted. In this process, a heavier nuclei decays into a lighter nuclei. The alpha particle released carries a charge of +2 units. The released alpha particle is also known as helium nucleus.
Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron. The released beta particle is also known as electron.
Gamma decay is defined as the process in which an unstable nuclei gives off excess energy by a spontaneous electromagnetic process and thus releases .
These radiations does not carry any charge and are electrically neutral.
The chemical equation for the decay of polonium-212 isotope follows:
Hence, the radiation that is emitted from the above process is alpha particle.